Improvement in radiators



UNITED STATES PATENT OEEICE.

THOMAS NORTH, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN RADIATORS.

Specification forming part of Letters Patent No. 151,151` dated May19,1874; application tiled April 20, 1874.

To all whom t may concer-n:

Be it known that I, THOMAS NORTE, of Brooklyn, inthe county of Kings andState of New York, have invented an Improved Radiator, of which thefollowing is a specification:

My invention relates to certain improvements designed more particularlyfor application to apparatus for heating buildings by steam. Theinvention relates to radiators, such as those wherein a steam-pipe isarranged in the radiator; and my invention, in contradistinction to suchold and well-known arrangement, consists in a double tube, curved midwayof its length, and having its ends communicating with the steam-chamber,and provided with a pipe leading from the curved portion to a pointbelow the steam-chamber, for the purpose of conveying away the air andcondensed steam which may be in the tube when the steam is introduced,and also to serve for the exit of said steam.

In the accompanying drawing, Figure lis a longitudinal vertical sectionof my improved radiator. Fig. 2 is a transverse horizontal section ofthesame. Figs. 3 and 4 are horizontal sections hereinafter particularlyreferred to. Y

The tube B, pipe O, and steam-chamber D are made in one piece, ofcast-iron, the steamchamber D being of circular or approximate form, andof a diameter somewhat greater than the distance between the outer sidesof the two extremities of the tube B, so that when a number of thesetubes are placed toi gether in a frame there is a slight space betweenthem. The lower portion of the steamchamber is made of suitable form andsize to facilitate its ready attachment to the hollow base or platformthrough which the steam is introduced. At the upper or curved portion ofthe tube on the outer surface is a. hollow projection, l), to facilitatethe removal of the core from the casting, after which removal theopening is plugged up, and the projection is used in attaching the tubeto the top of thc frame.

Instead of havin gbut two branches, as shown in Figs. l and 2, the tubeB may be formed with three branches, as shown in Fig. 3,. or fourbranches, as shown in Fig. 4, said branches converging at thc top andcommunicating with the pipe O.

When steam is introduced into the tube B, any air or condensed steamwhich ma-y be in the tube is driven down through the pipe G and conveyedby said pipe to a waste-pipe 1ocated outside of the steam-chamber. rllhepipe O also serves for the exit of the steam from the tube.

What I claim as new, and desire to secure by Letters Patent, is

The combination, in a radiator, of a series of tubes, B B, communicatingat their bottom with the steam-chamber D, and at their top with aninterposed pipe, O, said pipe C ex-l tending through the steam-chamber,substantially as described, for the purpose specified.

THOMAS NORTH.

Witnesses:

M. RYAN., VERNON H. HARRIS.

